Fuel-gas mixer



Apr. 3, 1923. 11,450,834

- H. R. MICKA FUEL GAS MIXER Filed Nov. 12, 1921 2 sheets-sheet 1 WITH ESSE S Apr.3,1923. 1,45%114 H. R. MICKA FUEL GAS MIXER- Filed NovflZ, 1921 2 sheets-sheet 2 wnuassss A-rroRNEY e Patented Apr. 3, 1923 STATES Alffihlli" @FFEQE.

HENRY R. MICKA, OF MAYWOOD, ILLINOIS.

FUEL-GAS MIXER.

Application filed November 12, 1921. Serial No. 514,654.. To aZZ whom it may concern: butterfly valve or similar device for regu- Be it known that I, HENRY OMM L lating the flow of the mixture into the in- MioKA, a citizen of the United States, retake manifold of the engine. All mixing siding at Maywood, in the county of Cook of the charge is done in the carbureter al- 5 and State of Illinois, have invented new though the vapor is not always heated to 60 and useful Improvements in Fuel-Gas Mixa proper temperature before entering the ers, of which the following is a specification. engine cylinders. From experience, I have My present invention has reference to infound that the most effective, and in my ternal combustion engines, and is directed opinion, the only reliable method of l to a means for breaking up the fuel into mechanically mixing the hydro-carbon and 65 finer particles during its passage from the air is in or adjacent to the entrance to the carbureter through the intake manifold intake manifold, and the mixer must be of proper to overcome the improper or ima nature which will not impede the free perfect mixing of the fuel and air, and conflow of the vapor due to the suction of the 1 sequently to produce a thorough and comengine and must also maintain a uniform 70 plete volatilization of the hydrocarbon and density and composition throughout the enconsequently greater power from the fuel. tire advancing column.

It is a still further object to produce a Referring now to the drawings in decarburation device for internal combustion tail, the numeral 1 designates a portion of engines which may be secured between the a internal o b ti gi 2 th i tak 75 carbureter and intake manifold without manifold thereof, and 3 the carbureter conaltering or changing the parts of the ennected to the intake manifold, and between gine, which shall be of a simple constructhe carburetor and the intake pipe of the tion, automatic in actuation and thoroughly manifold my improvement is arranged.

efiicient for the purpose for which it is de- The improvement includes a flange plate 80 vised. 4 of a size and shape corresponding to The foregoing, and other objects which those of the flanges between the intake pipe will, appear as the nature-of the invention of the manifold and the carbureter. Thus, is better understood, may be accomplished the same bolts which connect these last by a construction, combination and opermentioned flan 'es secure the plate 4 there- 8 ative association of parts, such as is disbetween. Suitadole gaskets may be arranged closed by the drawings which accompany between the flange plate 4 and the carand which form part of this specification. bureter and intake manifold flanges to in In the drawings sure an effective joint therebetween.

Figure 1 is a side elevation of a portion The flanged plate 4 is centrally provided 90 of an internal combustion engine illustratwith a roundedopening 5 ant a bridge in the application of the improvement, piece 6, which passes centrally through Figure 2 is a greatly enlarged sectional the said opening. The bridge piece has its view approximately on the line 22 of central portion enlarged, rounded in plan 40 Fig. 1. and provided with an opening 6. The 95 Figure 3 is a perspective view of the imp ning 6' is hreaded. provement removed from the engine show- Designed to rest on one face of the plate ing the parts thereof operably associated. 4, at the center thereof, and in contacting Figure 4 is a perspective view of the engagement with the bridge 6, but of a size 5 flanged late. not sufiicient to entirely close the opening 1 Figure 5 is a similar view of the. inner -5, is the inner conical mixer member 7. conical mixer, The member 7 has its outer reduced end Fig r 6 is a imilar i w f th t r closed, its widened end being open and its i l i said closed end, 8, is provided, at its edges According to standard practice, the with equi-distantly spaced orifices 9. The 1 combustible mixture for internal combus ClOSeCl nd 1 has a central opening 10 tion engines is produced in a carburetor fllemthlfough which arranged n lignid d ith a gas or li i l t d ment with the threaded opening 6 in the a i i l t p in whi h are abl bridge plece 6 of the plate at. The outer adjusted and an outlet provided with a frusto-conical mixer is of a less length but greater diameter than the inner mixer 7, the inner and widened open end of the said mixer 11 being scalloped, as at 12 and its outer closed face 13 is provided, at its edge with spaced orifices 1 1. The closed end is also provided with a central opening 15.

In contacting engagement with the outer closed face 8 of the'inner mixer 7 and the inner face at the closed end of the outer mixer 11 there is aspacer washer 16, and passing through the openings 15, through the washer, through the opening 10 and engaging in the threaded opening 6 there is a bolt member 17. The kerfed head 18 of the bolt is in contactin engagement with the outer closed face of the outer mixer 11. Parts of the hydro-carbon and air from the carbureter will be first directed through the opening 5 and into the inner mixer 7, the other parts passing through the opening 5 over the outer surface of the inner mixer 7. These last mentioned parts will be received in the outer mixer 11, as will the first mentioned parts, the latter passing through the orifices 9 in the inner mixer. The first mentioned oarts will be broken in their passage throng the inner mixer, the last mentioned parts will be mixed with the first mentioned parts in the outer mixer 11, and certain of the mixed parts will then pass through the orifices v14: in the closed end of the outer mixer, while the other and major parts of the fuel will be redirected toward the inner mixer 7 and the plate 1, such fuel being further broken in its passage between the flared inner mixer 7 and the scalloped edge of the outer mixer. Thus the particles constituting the mixture will be thoroughly broken up to produce a thorough and complete volatilization of the hydro-carbon before the same enters the engine cylinders, and as a consequence more power will be obtained from the fuel.

It is thought that the foregoing descripouter wall of the tion, when taken in connection with the drawings will fully set forth the construction, operation and advantages of the improvement, but it is to be understood that the description and showing refer only to a satisfactory embodiment of the invention as it now appears to me and therefore I may make such changes therefrom as fall within the scope of what I claim.

Having described the invention, 1 claim 2- 1. An auxiliary fuel mixer for fuel conduits comprising a plate having a central opening which partly closes the passage of the conduit, an inner hollow frusto-conical member arranged over but not wholly closing the opening, said member having its outer reduced and closed end apertured, a second and outer hollow frusto-conical mixer arranged over but spaced away from the end of the first mentioned mixer, said last mentioned mixer having its outer re duced end apertured, and its inner edge scalloped.

2. In combination with an internal combustion engine, of an auxiliary fuel mixer including a plate secured between :the carbureter and the intake manifold, said plate having a central round opening partlyob- 'structing the passage between the carbureter and the manifold, said pl ate having a bridge member disposed centrally of the opening a hollow frusto-conical mixer having its widened and open end in contact with the bridge and having its reduced closed end apertured, a second hollow frusto-conical mixer arranged over theend of "the first mentioned mixer, saidlast mentioned mixer having its outer reduced end apertured and its inner open end scalloped, aspacer washer between the first and second mentioned mixers, and an element passing through the mixers secured to the bridge of the plate for associating these elements.

In testimony whereof I affix my signature.

HENRY R. MICKA. 

